Ice Cream Forks have a flattened bowl remiscent of a spoon, but with tines cut into the tip of the spoon. With the handle, they will be about 5 to 6 inches (12 1/2 to 15 cm) long.
They are for eating with, not serving.
They make it easier to eat cake and ice cream, ice cream cakes, other frozen or semi-frozen desserts, etc, and can dig easily into hard, frozen ice-cream.